Radeon HD 3850 X2 vs Radeon RX 560

Intro

Compare those specs to the Radeon RX 560, which has GPU clock speed of 1175 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is made up of 1024 Stream Processors, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX 560 should perform a little bit faster than the Radeon HD 3850 X2 in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 3850 X2		105984 MB/sec
	Difference: 8704 (8%)

Texel Rate

The Radeon RX 560 is quite a bit (more or less 252%) faster with regards to texture filtering than the Radeon HD 3850 X2. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 3850 X2		21376 Mtexels/sec
	Difference: 53824 (252%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 3850 X2 is the winner, but not by far. (explain)

Radeon HD 3850 X2		21376 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 2576 (14%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.